Every time a user connects to kdm, the following message is
logged:
Apr 4 01:50:00 ironclad kdm[19848]: can't execute
"/usr/X11R6/lib/X11/xdm/Xsetup" (err 2)
I assume this is because the file that is there instead,
Xsetup_0, was renamed to that to allow a different Xsetup
file per X host, but kdm wasn't updated to this fact. A
symlink would be easiest, but it would be nice if kdm had
this functionality as well.
BTW, kde* is missing from your component menu.